Sewing-machine.



N0. 8%,,615. PATENTED DEG. 31, 1907. .W. N. PARKES.

SEWING MACHINE. v APPLICATION FILED OUI.3, 1903.

'4 SHEETSSHEET 1.

N VE N 705 flkz am' $47M W10 nan].

A TTOHN Y PATENTBD DEC. 31 1907. w. N. PARKES. SEWING MACHINE.

APPLIGATION FILED OGT.3, 1903.

4 SHEETS-SHEET 2.

No. 875,615. PATENTED DEC. 31, 190?. W. N. PARKE-S. SEWING MACHINE.APPLICATION l-ILEIJ 0013,1903.

4 SHEETS-SHEET 4.

I 1 I i...

WlTNESSES WILLIAM N. PARKES, OF BROOKLYN, liEW YORK.

SEWING-mourns.

To all whom it may concern: Be it known that ,I-,-WILLIAM N. PARKES,

a citizen of the United States, residing in Brooklyn, county of Kings,and State of New York, have invented a new and useful Im-f provernent inSewing-Machines, of which the following is a descri tion. This inventionre ates to the class of sewingmachines in which a double-'chain-stitch asingle source.

is-made, but is not intended to be confined exclusively to-said class,as it is evident, as will ap ear from the drawings andjspecifica-.tions, t v at it may be used for various other pu oses. 15'

e main.'object is to rovide means whereby the looper of the un er-stitchforming mechanism may be given longitudinal and lateral reciprocatingmovements from In sewingmachines of this class the looper is usuallygiven a longitudinal reciprocatin movement from an eccentric or cam an'intermcdiatemechanisinand a lateral movement from a second eccentric orcam and mtermedlate mechanism. In'other words,

T the several dilferent movements are usually Y derived from severaldifferent sources.

Inthe preferred form of my invention,--as herein disclosed, all themovements of the 'looperare derived from a single eccentric or source ofpower.

Another object of this invention is to pro- Vide an'auxiliary looperwhich is operated above the 'workfplate and which passes an 35 auxiliarycord or thread back and forth so' that it catenates and is stitched downby the needle-threads, two or more needles being used-for this pur oseand two or more loopers to cooperate wit the said needles to form thelock on the under side. Ihave so formed and located the parts thismachine that it isada tedfor. a very high rate of speed. such as isdesired 1n the present advanced state of manufacturing.

Anotherpbject of this 1nveiit1on is to provide --mechanism whereby thishigh-speed double-chain stitch machine maybe made or converted into anornamental stitch machine which will do, :or is adapted for, variouskinds of ornamental work. a

It isalso an bject 'of this invention to provide, in this c ass ofsewing machines more particularly,'bi1t-'for various otherclasses aswell, avery compact mechanism, "s'rm 1c in form,- which operates anauxiliary, ooper down. through the hollow presser-bar-and ISpecification of Letters Patent, Application filed October 3. 1903.Serial No; 175.595.

invention.

Patented Dec. 31 19072- r- I which permits the resser-bar t s: lifted"Without in any way interfering with '4 looper mechanism ordisplacingitinany manner. .Z' It is a further object of this inventionto provide a resser-foot especially'adapted for the production of theornamental stitch of this machine, an d also adapted to carry or feed tothe work and under the needles'ribbon or other suitable materialforaddingtothe ornamental effects which may be" pro duced by the machine,or. for stitching. said ribbon or tape tosuclrmate'rial asmaybeadvantageous or necessary to prevent the stretching of the seam, orotherwise 'irnpr'ov-'j ing or ornamenting the latter. 5

t is also an object of this invention to" provide a resser-foot with anauxiliary piece or means, for guiding the ribbon, which may be readilyremoved and a piece of a 'difierent";

character substituted'soas to" guide broader or narrower ribbonunder theneedles or be= tween the stitching of the needles? Referring to thedrawings, Figurejl .is 'afrear elevation of my machine, the cloth-plateearand parts of the feed being'omitted for'c ness. Fig. 2 IS an endelevation of. the same.'- Fig. 3 is atop plan view, the goose neck or'over-hanging arm' being removed'i for' clearness. 'Fig. 4 is a sectionalview on line of Fig. 3 showing the position of partswhen the loopers areapproximately at-the commencement of the 00p engaging movement; J 4 11g. 3;) showing-the position of arts when, the loopers are approximatelyat t e po'into'f:

' casting ofi the needle-loop.

Fig 5 is a sectional view on the same line (4- vation of a modificationof the'looper-driving mechanism. "Fig; 7 is. a top plan view-iofthe'presser-foot and looper carr ed thereby;

in one position. FigQ'S 1s a'top plan viewiof f the same, in anotherposition.) Fig. 9 ist-a; sectional view. on line 77 of Fig.-7-. Fig l0is a side view of the resser-foot. Figs. '11 16 inclusive illustratesome of the stitches.

and ornamental effects which-can b'e pro-f duced on the machine. Fig. 17is a sectional. .viewofone of thebearing blocks, showing. the detail ofthe construction permitting the. same to be lubricated; Fi 18, is a sec-3 tional'view disclosing amo ificationinmy,

In the drawings, A, e mg' h i shaft; 2, the needle-bar drivin l e ver vpartly shown; 3, thecom1ection of the machine; -1,--indica'testhefil'iflfi; o Y

' f providedwith'means'for carrying" ablirecd c 2, lseeured; by-smearzsgirl Hat loWershaft snathefn'eedle baidriving-le er; the lower end ofwhich'is formed into a strapch embraces an eccentric .4, mounted on'the-rear end of the driving-shaft,- 'a driving- 5 whee l5,su itablformed to be engagedby an ordinarybelt eing mounted on the "same end ofthe shaft; 6,.is aneedle-bar; 7, the needle 'holderf 8, thread-guidesattached to' the up er end of the needle-bar through which t e threadsare led downtoand through tensionguideggand guidelO, to the needles.Thehol er 7, adapted to carry two needlesf In'a wa'yformed 1n the diskcarried bythe -,fQ1"War d,end.o the driving shaft is=suitablyIand-adjustab1yseated a crank-pin which is embraced-by one end.Ofconneoti n 1-1, .the 'other end of saidconnection being connected toa iced-operating jshaft12, to which is attached-thezr ar i d of afeed-bar 13,. which .20 carries ,a, feed-dog 14-. All of thisconstrue-.- '='ti'on-, JsQ-far- 'as described, is 'of a usual andwell-lmown' e and forms no part of my invention.It-,'mconnectionwithothermechchani'sm. partly shown but: notdescribed,"-'constitutes a'-usu'al---means for reciprocating the"ne edle holderandjbariand-o erati a feed mechanism. .While I have se ected t s form offeed xnechanism. and needle-bar ac' -'tuating mechanism; for Y use'incombination 5'0 with my. invention in" order to illustrate the sa'me, 1t-is -t o beunderstood that various other vmechanism andneedle-j baractuatihg' r'iiech'anism'ma f-be used; also it is noted suitable tensionJevices may be 5 used in combination with the threads for controllingthe. sa'me'andsetting ,the stitch. It is also to'benoted-thatany-suitable form of presser-bariand means for lifting same may ."be.used; In the present instance I have jsh'owna) lever 15, suitablymounted and' arranged to liftthe presser-bar. a j Before'proeeedmgto.-adescription ofgpy invention; I desire it understood that 'the -"rforindisclosed is the preferred form fifl-at-th resent time, but thatit maybe zchanged in various wayswithout departing from the spirit-of myinvention. now describe my invention.

' "'{On the driving-shaft}, is an eccentric .17, 6-0 embraced by a strap18,:having adjustable lugs 19 and'20,'b -me'ans' of which the lostmotion between t estrap'a'nd the eccentric. may bejtaken up. The otherend of the .straf) is suitably connected at 21 to theup-' per endo'fth'e arm 22, whichlis attachedfat.

Its lower'end-toa'tub'e or shaft "23, suitably to lturn. andtorifiprocate 'long1- -tu i'na earmgs 2 1" an 25, rojecting u .wardl yfrom frame A of the'macliine. 'lo t e said shaft 23, areattached-zloopercarriers 26 and 27, by"means -of screws 28 311M529, re-

Hated; the'conneetion 1s,-'s' w specti'vely. In the said carriers aremounted l' 'p'jrs30and31', respectively, which may be screws 32 and-i335The/strap l'8,..i's adapted to sl de or vibrate laterally on theeccentric 17f,- and the shaft-23,, is adap ted .-to turn and toslidelaterallyinitsbearings; Intermedi atethe ends of the strap 18, Iinsert a pin 34,

which hasballs 35 and 36, formed on its ends. Suita 1y attachedtotheframe A, of

- adjustable-piece 39 ,f on which isformed an inchne'd surface-40,. thepiece or block 39," being keyedin a wa 41, so as'to be adj ustable'vertically in=the bearing-37, andscrew 42, serving as a-means for securingthe:piece 39, to I the bearing 37, and-theslot 43, serving as-a.

: means for permitting the said piece- 39 to-b adjusted verticallyBetween the ends'ofthe pin or bar 34-, and-fthe inclinedsurfaces 38,

40 I insert shoes-.44and 45; which are -.85 formed sockets; 46 and i 47,suitable to; embrace a art of the-ball endst35 and 36, of the in '34.='1-he screvr 48; serwes,as'a means-for" oldingthe; pin 34, inthe'connection -18, The shoes'ifand 45,]may have 'flatsurfaces 99. 519- and'50,:Irvhicliiengagegtheiinclined-sure faces 38 and 40, as-m:1T1g;?e,;5,,6;rb t, the

- preferredform-of my-invention is to have, the

shoes 44, :45, 'madeifhqlldwiong'their bearing faces, alt-d ff,-vIiig'.=- 1" T,-. and-.with "a contra j ,95 bore; .or aperture:"construction that thecupfermationprevexits tlie escape. (pf-oilorother'lirbricantfi permitsfproper;=lubricat1brr' an l it is found "Inthejprese'nt' form -05; my. iniieh ogiill';

have; shown; the"bearinlg 37-, q attached? f the. frame *A- of.the-machine by'-meains?of-.='serwsf' 51 i d5 f i" 1 l Theoperation ofthisf-looper mechanisthis-- substantially-'as-folleivs: the-shaftril s:

revolved, thei' hollow shaft g3, 'ahdjconsequently the "loopegs are E' FQ extreme forwardimoyement'fiolili .Qop eraj tor, theforward-jmovenient;ofi' theloopei'sgm slows"up until theyir'each-itheextreme 'ofl" movement this direction-: *At thestrap 'endof==theconnection -1 8',-';is'-traveI;i

ing 'atits --h ghe pe w sr ya seq'uentlythe loo ei's"- are-'- being.passed.-at"- their highest, laterallypm. ara-toly' 'theneedlesdoscending -in the cop ofilthe loo'p er-thr'ead; i th'e loepers;extreme backward -;p'o'sition or.-' toward operator, or as the eccentricmovesonjtorthi 1:20

extreme, the'returnimotion is also slowing-up. until it stops; 'At' -tlJis-fpoint, the} stray end of. the-connection. -18; islnoving upwar y-atits highest speed-and conseqitgently ther'looP ers are beingrapidlyinovedterallyin'pos'i-i '12 5 'tion' t-o engage the -need lethread'lpops,- "the" inclines--10 and 38, being sufficient to'givethe desiredlateral movement for theseloop engagements; 4

i will now describe myauznllaryloope .130 g mechanism by .means of whichthis machine is converted into a very' high-speed, special machineforornamental seam covering, ornamental stitching,', ornamental ribboninsertion and other purposes.

1' In suitable bearings formed in the forward end of the "goose neck orthe frame of the machine, is mounted,- as beforementioned, a vpre'sser-bar ,5. Inthis presserbar 6, I form a long bore, which ,extendsthe full :dength of the resser-bar; or I use a tube for {this purpose;In: the said bore, I locate to turn freely,l.a.-looper carrier rod 53,to. the' lower end of which I clamp -a looper 54', by

'r'the looper rod andtransversely of the same, ,I; locate'adjustably astem. 56,..projecting means oi 'af screw55. In'the upper end .of

I from afball'5 7, and I-secure the said. stem\56,

in its receptacle by means of a screw -58.'

-{2fo;: ne end of the',-oonnection 59, is suitably on th'eend ofa {pin60,, which-pin is secured f 2.5-; screw-62,1 the lever 61, being pivotedat 62. to a suitable'bracketfi3, which is attached in formed- :toemb'race the ball 5 7,-a-nd' the other end of: the -'said connection-59,is suitably formed embracea ball, not shown, formed to the upper end -of;a'lever 61', by means of a a suitable manner to the frame Aof thema-'ch'ine: .ZIn the lower end'ofthe lever 61, is

suitably mounted a [switch-cam shoe 64,-

which'engages with; a swi-tchcam 65. This 4 sw itch 'cam 65, is soconstructed and of such size it moves the lower end of the lever 61,or-gives the lower end of the said lever 61,

Frevolution's'of the shaft 1. This movement a complete movement back andforth to two of the jswitchecam is the same as used in zigzag'or'button'hole sewing machines. It will 'nowj-belseen thatin operatingthe machine,

looper-rod or carrier, 53, said carrier-will be" :the. -lever 6.1, willbe oscillatedand th'rou h its connection-with the upper end'oft eoscillated andrwith-it the looper 54. It will a'ls'o =be fseen' t-hat badjusting the stem 56, in. the upper .endo the ;-lo oper-carrier 53, soas tobrmg the end of-the connection '59, to-

. :ward or from the said looper-carrier, that the means of which theauxiliary thread extent of the-movement of the looper will be increasedor decreased. Inthe free end of the looper 54-, is formed .a thread orcord eyelet or cord-is passed back and forth under the needles. a 1

'- I will nowidescribethe preferred form of presser-foot, which Iprovide foruse in cominaltiomwith my looper movement.

The pl esser-footlin general-I number 67.

Trhe'u-pper end of the resser-foot 67,-;is,

suitably formedtoembrace the lower end of the-presser-bar, 6.- Lugs 68and 69', are

formed on the said presser-foot separated by a slot 70,"extendingbetween the said lugs into the presser-bar socket, a' clam ing screw 71,being suitably located in said ugs to clamp' the' Ipresser-foot securelyto the,

lower end of the presser-bar. The presserbar is suitably formed as shownin Fig. 9, to

permit the shank of the looper 54,- to be clamped to the lower end ofthe looper-rod 53. For this purpose the shank of the looper 54, is ofsufiicientextent to just fit in the opening in the resser-foot, and whensecured in place prevents longitudinal move ment of the looper-rod 53.

the needles and the free drawing up oi the A suitable opening-7.2,isformed through the presser-foot to permit theiree passa e of;

loops, thetongue 73, beingprovided to assist in holding the work downand for the urpose of taking the strain oiithe auxiliary lboper orthread. A'channel or guide 74, is formed through the resser-foot for thepas.-

" sage of ribbon or the ike, and a groove 75, in

the bottom of the presser-foot is formed slightly deeper back'ofthe-needle to permit of the passage, of the auxiliary cord or -looer-thread and the ribbon. The front en of roove 75, is not formed quiteas deep as at t e rear end because only the ribbon assesin' front, theauxiliary thread or-cord ingl swung back and forth over the tongue 72, t

en passing on back of: the needles. .On the forward end of the resserfoot is a detachable piece 76, throng which ribbon guide openings 77 and78, are-formed-. This detachable piece 76, has an upwardlyextending'part through which the hole or 'eye' 79,'is' formed whichserves as a guide for the auxiliary cord or thread. This location of theeye for the cord or thread makes it unnecessary to have any take-up forthevsaid cord; and this piece 76, being detachable,-

makes it convenient to change it for a piece ings.

For the purpose of regulating the tension with narrower or wider ribbonguide open= on-the auxiliary cord or thread, I provide a tension device'80, which is conveniently located so that the auxiliary thread'or' cordcan pas". directly through the same-to the eye 79 This tension device isof usual construct n and need not behere specified. In

practice, I employ a very slight tension on needle-threads areindicatedby" b, b, the

cord by c, and the fabric by a; --This forms a desirable ornamentalstitch for the surface.

of the work, and also a'se'am covering stitch, inasmuch as' the stitchesmay be very short and the cord made to practically cover the adjacent orjoined edges. By varylng the tension on the cord, different ornamentalBy a plying light tension to applied thereto by stitching b b &

effects can be obtained, as for exa... =ple' shown in F g. 13, wherein athe work, 32?,

b the needle-threads and c'-', the c'ord. By

allowing the cord to run practically. free of tension, the effect. shownin Fig. .14 will be produced, wherein a is. the work, b b theneedle-threads and 0 the cord. In Fig. 15,

two different pieces of work are shown at a,

a, the joining seam being covered by ribbon or tape d", which is securedin place by the stitching b b and the cord 0 This makes a strong and.ornamental seam-cover. Tucking can be produced and ornamented as shownin Fig. 16, the work, a being formed into tucks (P, which have theornamental cord 0 Obviously, many difieren-t forms of work andornamental effects can be produced on my machine as desired; And itshould be under stood that the stitching may be applied to the surfaceof the work, to cover a seam, or

to form the junction between two pieces of work.

In the modified form shown in Fig. 6,'all the essential partsaresubstantially the same and have the same referencecharacters ap-'plied thereto as in the other figures; but, the

bearing for controlling certain of the movements of the looper isdifferently formed.

For example, I form a bearing 37* with all its walls inclined a's'at 3839*, and 40 the piece 39 being adjustable as in the other form. Thisdisposition of the wall of the bearing piece is accompanied by adisposition of the pin 34 at an angle to the driving shaft instead ofparallel therewith as in the other form. In this way the pin 34 engagesthe shoes 44, 45, in a line parallel withtheir and engaging said pin.

bore 44 instead of at an angle thereto.

Another form of my invention is illustrated in Fig. 18 wherein 25represents the standard or bearing for a short pin 79 held in saidhearing by screws 8Q tapped therethrough The pin proj ectssufficientlyfrom the bearin to afford support for a sliding sleeve 81 to w ich thelooper c'arriers 26 and 27. are rigidly secured by means of thescrews'28 and 29 tapped through said carriers and engaging said sleeve.Adjacent the looper earners this sleeve has secured' thereto thecrank-arm 22 to which the eccentric strap 18 is pivotally'secured as inthe other figures. The crank-arm 22* is held to 'the sleeve by means ofthe set-screws 82 55.

tapped through the bearing of the crank-arm and engaging said sleeve.This construc- .tion forms a simple and compact bearing forthesupportand actuation of the loopers', the sleeve 81 rocking andsliding on the journal pin 79 to give the loop-taking and needleavoidingmovements in substantially the manner of operation of the hollowshaft23.-

While I have chosen to illustrate my looper mechanism in a machinehaving a plurality of needles, it will 'be.obvious that asingleneedlemachine is within the contemplation of my invention.

I- desire it understood in connection with this invention that I do notwish to be lima.

ited toxthe form of auxiliary" looper herein disclosed, nor to theparticular form of presser-footl In fact; various changes may be madewithout departing from the spirit of my invention as before stated.

WhatIclaim is: 1,-A sewingmachine comprising a part ,which carries alooper, a revolving. shaft which carries an eccentricor cam, a pitmanconnection between said eccentric and said part, and means engaged bysaid pitman whereby lon itudinal movement of the pitman causes hodilylateral movement of the same.

2. A sewing machine comprising a revolving shaft, an eccentric carriedby-said shaft, a rocking shaft the axis'of which is parallel withsaid'revolvi shaft,'a connection between said eccentrlc and said rockingshaft, means engaged by said connection whereby the. longitudinalmovement of the same causes rocking and longitudinal movement of "saidrocking shaft, and a looper carried by' said rocking shaft. 4

3. In a sewing machine, a revolving shaft, an eccentric carried by saidshaft, a rocking shaft, a looper carried by said rocking shaft, an armcarried by said rocking shaft, a pitman directly connecting said armand-said eccentric whereby said rocking shaft is oscillated, and meansengaged by said pitman whereby the movement of the same causes saidrocking shaft to move longitudinally.

4. A stitch-forming mechanism for sewing machines comprising a needleand cooperating looper, a carrier for said looper, an actuating cam, asingle. (lIlVlIlg connectlon .be-

said second shaft is reciprocated longitudinally thereby, and a loopercarried by said second shaft.

6. A. sewing machine havin a looper that is adapted to be movedlongitudinally and laterally, a single revolving device and means forconverting the ovement of the same into longitudinal an lateral movementof said looper comprising a pitman con-- nection, and a part havingstationary in--' means for operating said looper comprising a parthaving two surfaces that are inclined to the vertical and parallel withrespect to each other, a revolving shaft, an eccentric carried by saidshaft, oneend of a strap pitman journaled on said eccentric, said strappitman in engagement with the inclined surfaces of said part, and-aconnection between .saidpitman and said looper by means of which thelooper is operated.

' A 8. A sewing mach'ne comprising a looper, means for operating saidlooper comprising a vstationary. part having two inclined surfaces thatare parallel with respect to each other, means for oscillating saidlooper longitudinally, and means intermediate said inclined surfaces andsaid looper whereby said surfaces cause said looper to be movedlaterally. 9. A looper mechanism for sewing machines comprising aloop-carrier, and means for actuating the same including a drivingshaftibarrying a rotary device and a single connection between thelatter and the carrier having means cooperating therewith longitudinallysaid looper, means for re ciprocatinglaterally said, looper comprising apart having surfaces inclined to the vertical, means foradjustingitneface of one ofsaid surfaces so as to'decreasethe distancebetween said surfaces, and a part operating between said surfaces bymeans of which said looper is reciprocated laterally.

11. A looper mechanism for sewing machines comprising a looper-carrierand means for actuating the same including a rotary device, a connectionbetween the latter 'and the carrier, and means whereby the connection isgiven bodily movements, which are transmitted to the carrier, and alsolongitu-' dinal movements at an angle to the bodily movements, and saidlatter movement being on and relatively to said device.

12. A sewing machine comprising a revolving shaft that isprovided withan eccentric, a strap pitman the strap end of which. is journaled onsaid eccentric and adapted to move laterally thereon, a second shaft, aconnection between the other end of said strap pitman and said secondshaft, whereby said second shaft is oscillated from the movement of saideccentric, means in engagement with said strap pitman whereby when thesame is operated it is moved laterally and said second shaft is therebyinoved longitudinally, and a looper carried by said second shaft.

13. A sewing machine provided with a needle-bar that is adapted to carrya plurality of needles, a looper mechanism.

adapted to cooperate with said needles, a single driving shaft, meansadapting said shaft to operate said looper mechanism, an oscillatinglever operated from the movement of said shaft, means adapting saidlever to reciprocate the needle-bar, a tubular resser-bar, a rod orshaft j-ournaled in the tube of said resser-bar, an auxiliary threadcarrying finger carried by said rod, and means whereby said rod isoscillated from the movement of saidsingle shaft.

14. A sewing machine having a single revolving shaft, a plurality ofneedles, a plurality of loopers adapted to cooperate with said needles,means whereby said needles and said loopers are operated from themovement of said single revolving shaft, 'a tubular pressenbar, a rod orshaft journaled in the tube of said presser-bar, an auxiliary thread orcord carrier carried by sa1d-rod,a cam mounted on said single revolvingshaft, and means adapting said cam to operate said auxiliary finger. I

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

WILLIAM N. PARKES.

Witnesses: p g

CHAS. MOO. CHAPMAN, M. HnRsKovrrz.

